* {
  margin: 0;
  padding: 0;
  list-style: none;
  box-sizing: border-box;
}
html {
  font-size: 10vw;
}
.app {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.top {
  flex: 0;
  border-bottom: solid 1px var(--adm-color-border);
}

.body {
  flex: 1;
}

.bottom {
  flex: 0;
  border-top: solid 1px var(--adm-color-border);
}
.content {
  height: 4rem;
  color: #ffffff;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 48px;
  user-select: none;
}
